IMO this is a horrible case design - why make it round so it rolls around on your desk? Can't stand it up right, etc. It is not an object that you continuously hold in your palm, then why not make it a box? Add draft angles to help with the injection molding process.
Industrial designers are continually chasing organic forms for no reason at all from car interiors to headphone cases - functionalism takes a back seat, fancy presentations to executives impress and sexy curves appeal to the masses.
It is almost as if we've forgotten how to design things from the ground up - functional aspects should define the form. Earbuds are fine though - they need to be ergonomic to sit in the ear.